Abstract: A guidance device for selecting a safety factory according to the present invention is a guidance device that selects a safety factory, which is an operating factory at the time of a power failure, and presents a safety operation plan for a plurality of factories in a power system. The guidance device includes a presentation unit that calculates a combination of an operating factory and a non-operating factory within a predetermined period from a planned value of power demand-supply of a factory so that a power consumption amount of the factory satisfies a predetermined condition and that presents information on the calculated combination.

Abstract: A gas amount prediction method predicts an amount of gas generated in a factory, and includes a generation amount calculation step of calculating a generation amount of actually usable gas by using a learning model that has learned a relationship between a generation amount of the gas and a use amount of the gas in past operation data.